| paulwilky76
Avoid Lacie drives - I have had 4 fail in 6 months. And they don't honour their warranties either. That includes those brushed aluminium drives. I know they contain Seagate / WD etc but the drives cook and, in my experience, Seagate will replace if within 3 years.
You might know this but to explain:
Raid one is drive mirroring. So 2 drives, both identical. Therefore for 500GB of useable storage you would need 2 500GB drives.
Raid 5 is disk striping. You need a minimum of 3 disks. Two disks are to store data, the third disk is the parity disk. Don't worry about what this means but to have 500Gb of useable storage space you would need 3 250Gb drives. Ie two are the useable drives (hence 250gb x 2 = 500gb) and the third drive is the parity drive. It is more efficient than Raid 1 - ie 750 gb of drives gives you 500gb of useable space, whereas Raid 1, 1000Gb of drives gives you 500Gb of useable space.
In this example it would probably be cheaper to go for Raid 5 too. |